70 534 study guide : Apr 2018 Edition

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Q41. DRAG DROP – (Topic 8)

You are training a new developer.

You need to describe the process flow for sending a notification.

Which three actions must be performed in sequence? To answer, move the appropriate

actions from the list of actions to the answer area and arrange them in the correct order.

Answer:

Q42. CORRECT TEXT – (Topic 6)

You have an Azure subscription.

You plan to deploy five virtual machines that will have similar configurations and will run the same workload.

You need to recommend a solution to ensure the availability of the virtual machines during Azure maintenance periods. At any given time, only one virtual machine can be offline for maintenance.

What should you include in the recommendation? To answer, select the appropriate options in the answer area.

Answer: 

Q43.  – (Topic 6)

You are designing an Azure application that processes graphical image files. The graphical Images are processed in batches by remote applications that run on multiple servers.

You have the following requirements:

✑ The application must remain operational during batch-processing operations.

✑ Users must be able to roll back each image to a previous version.

You need to ensure that each remote application has exclusive access to an image while the application processes the image. Which type of storage should you use to store the images?

A. Table service

B. Queue service

C. Blob service

D. A single Azure VHD that is attached to the web role

Answer: C

Explanation: * Blob Leases allow you to claim ownership to a Blob. Once you have the lease you can then update the Blob or delete the Blob without worrying about another process changing it underneath you. When a Blob is leased, other processes can still read it, but any attempt to update it will fail. You can update Blobs without taking a lease first, but you do run the chance of another process also attempting to modify it at the same time.

* You can opt to use either optimistic or pessimistic concurrency models to manage access to blobs and containers in the blob service.

Reference: Azure Blob Storage Part 8: Blob Leases

http://justazure.com/azure-blob-storage-part-8-blob-leases/

Reference: Using Blob Leases to Manage Concurrency with Table Storage http://www.azurefromthetrenches.com/?p=1371

Q44.  – (Topic 6)

You develop a new Azure Web App that uses multiple Azure Blobs and static content The Web App uses a large number of JavaScript tiles and cascading style sheets. Some of these files contain references to other files. Users are geographically dispersed.

You need to minimize the time to load individual pages. What should you do?

A. Migrate the Web App to Azure Service Fabric.

B. Implement an Azure Redis Cache.

C. Enable the Always On feature of the Web App.

D. Create a services layer by using an Azure-hosted ASP.NET web API.

E. Use an Azure Content Delivery Network (CDN).

Answer: A

Q45.  – (Topic 5)

You need to recommend a technology for processing customer pickup requests. Which technology should you recommend?

A. Notification hub

B. Queue messaging

C. Mobile Service with push notifications

D. Service Bus messaging

Answer: D

Explanation: Service Bus queues are part of a broader Azure messaging infrastructure that supports queuing as well as publish/subscribe, Web service remoting, and integration patterns.

Service Bus Queue support Push-style API (while Azure Queue messaging does not).

Incorrect:

Not A: Notification Hub is only used to push notification, not for processing requests. Not B As a solution architect/developer, you should consider using Azure Queues when:

* Your application must store over 80 GB of messages in a queue, where the messages have a lifetime shorter than 7 days.

* Your application wants to track progress for processing a message inside of the queue. This is useful if the worker processing a message crashes. A subsequent worker can then use that information to continue from where the prior worker left off.

You require server side logs of all of the transactions executed against your queues. Not C: To process the messages we do not need push notification.

Reference: Azure Queues and Service Bus Queues – Compared and Contrasted

https://msdn.microsoft.com/en-us/library/azure/hh767287.aspx

Q46.  – (Topic 6)

You are designing an Azure web application. The solution will be used by multiple customers. Each customer has different business logic and user interface requirements. Not all customers use the same version of the .NET runtime.

You need to recommend a deployment strategy. What should you recommend?

A. Deploy with multiple web role instances.

B. Deploy each application in a separate tenant.

C. Deploy all applications in one tenant.

D. Deploy with multiple worker role instances.

Answer: B

Explanation: There are two types of tenant environments. The simplest type is a single- tenant application where one customer has 100% dedicated access to an application’s process space. A single Tenant Applications has a separate, logical instance of the application for each customer or client. A single tenant application is much more predictable and stable by its nature since there will never be more than one dedicated customer at any point in time in that VM. That customer has all of its users accessing that dedicated instance of the application.

Reference: Multi Tenancy and Windows Azure. Overview of Multi tenant Application and Single tenant Application Architectural considerations.

http://sanganakauthority.blogspot.in/2011/12/multi-tenancy-and-windows-azure.html

Q47.  – (Topic 6)

You are designing a distributed application for Azure.

The application must securely integrate with on-premises servers.

You need to recommend a method of enabling Internet Protocol security (IPsec)-protected connections between on-premises servers and the distributed application.

What should you recommend?

A. Azure Access Control

B. Azure Content Delivery Network (CDN)

C. Azure Service Bus

D. Azure Site-to-Site VPN

Answer: D

Explanation: IPsec can be used on Azure Site-to-Site VPN connections. Distributed

applications can used the IPSec VPN connections to communicate.

Reference: About Virtual Network Secure Cross-Premises Connectivity https://msdn.microsoft.com/en-us/library/azure/dn133798.aspx

Q48.  – (Topic 6)

You are designing an Azure web application that includes many static content files.

The application is accessed from locations all over the world by using a custom domain name.

You need to recommend an approach for providing access to the static content with the least amount of latency.

Which two actions should you recommend? Each correct answer presents part of the solution.

A. Place the static content in Azure Table storage.

B. Configure a CNAME DNS record for the Azure Content Delivery Network (CDN) domain.

C. Place the static content in Azure Blob storage.

D. Configure a custom domain name that is an alias for the Azure Storage domain.

Answer: B,C

Explanation: B: There are two ways to map your custom domain to a CDN endpoint.

1. Create a CNAME record with your domain registrar and map your custom domain and subdomain to the CDN endpoint

2. Add an intermediate registration step with Azure cdnverify

C: The Azure Content Delivery Network (CDN) offers developers a global solution for delivering high-bandwidth content by caching blobs and static content of compute instances at physical nodes in the United States, Europe, Asia, Australia and South America.

The benefits of using CDN to cache Azure data include:

/ Better performance and user experience for end users who are far from a content source, and are using applications where many 'internet trips' are required to load content

/ Large distributed scale to better handle instantaneous high load, say, at the start of an event such as a product launch

Reference: Using CDN for Azure

https://azure.microsoft.com/en-gb/documentation/articles/cdn-how-to-use/

Reference: How to map Custom Domain to Content Delivery Network (CDN) endpoint https://github.com/Azure/azure-content/blob/master/articles/cdn-map-content-to-custom-

domain.md

https://github.com/Azure/azure-content/blob/master/articles/cdn-map-content-to-custom- domain.md

Q49.  – (Topic 6)

A company has multiple Azure subscriptions. It plans to deploy a large number of virtual machines (VMs) into Azure.

You install the Azure PowerShell module, but you are unable connect to all of the company's Azure subscriptions.

You need to automate the management of the Azure subscriptions. Which two Azure PowerShell cmdlets should you run?

A. Get-AzurePublishSettingsFile

B. Import-AzurePublishSettingsFile

C. Add-AzureSubscription

D. Import-AzureCertificate

E. Get-AzureCertificate

Answer: A,B

Explanation: Before you start using the Windows Azure cmdlets to automate deployments, you must configure connectivity between the provisioning computer and Windows Azure. You can do this automatically by downloading the PublishSettings file from Windows Azure and importing it.

To download and import publish settings and subscription information

✑ At the Windows PowerShell command prompt, type the following command, and then press Enter.

Get-AzurePublishSettingsFile

2. Sign in to the Windows Azure Management Portal, and then follow the instructions to download your Windows Azure publishing settings. Save the file as a .publishsettings type file to your computer.

3. In the Windows Azure PowerShell window, at the command prompt, type the following command, and then press Enter.

Import-AzurePublishSettingsFile <mysettings>.publishsettings

Reference: How to: Download and Import Publish Settings and Subscription Information https://msdn.microsoft.com/en-us/library/dn385850%28v=nav.70%29.aspx

Q50.  – (Topic 6)

You are designing an Azure development environment. Team members learn Azure development techniques by training in the development environment.

The development environment must auto scale and load balance additional virtual machine (VM) instances.

You need to recommend the most cost-effective compute-instance size that allows team members to work with Azure in the development environment.

What should you recommend?

A. Azure A1 standard VM Instance

B. Azure A2 basic VM Instance

C. Azure A3 basic VM Instance

D. Azure A9 standard VM Instance

Answer: A

Explanation: Azure A1 standard VM Instance would be cheapest with 1 CPU core, 0.75 GB RAM, and 40 GB HD. It would be good enough for training purposes.

Reference: Virtual Machines Pricing, Launch Windows Server and Linux in minutes http://azure.microsoft.com/en-us/pricing/details/virtual-machines/